#include <linux/bpf.h>
#include <linux/if_ether.h>
#include <linux/ip.h> SEC("xdp_drop_malicious")
int xdp_drop_prog(struct xdp_md *ctx) { void *data_end = (void *)(long)ctx->data_end; void *data = (void *)(long)ctx->data; struct ethhdr *eth = data; if (data + sizeof(*eth) > data_end) return XDP_PASS; if (eth->h_proto != htons(ETH_P_IP)) return XDP_PASS; struct iphdr *iph = data + sizeof(*eth); if (data + sizeof(*eth) + sizeof(*iph) > data_end) return XDP_PASS; // Example: Drop traffic from a specific subnet identified by NAPSE as malicious if (iph->saddr == htonl(0x0A000001)) { // 10.0.0.1 return XDP_DROP; } return XDP_PASS;
}
#include <linux/bpf.h>
#include <linux/if_ether.h>
#include <linux/ip.h> SEC("xdp_drop_malicious")
int xdp_drop_prog(struct xdp_md *ctx) { void *data_end = (void *)(long)ctx->data_end; void *data = (void *)(long)ctx->data; struct ethhdr *eth = data; if (data + sizeof(*eth) > data_end) return XDP_PASS; if (eth->h_proto != htons(ETH_P_IP)) return XDP_PASS; struct iphdr *iph = data + sizeof(*eth); if (data + sizeof(*eth) + sizeof(*iph) > data_end) return XDP_PASS; // Example: Drop traffic from a specific subnet identified by NAPSE as malicious if (iph->saddr == htonl(0x0A000001)) { // 10.0.0.1 return XDP_DROP; } return XDP_PASS;
}
#include <linux/bpf.h>
#include <linux/if_ether.h>
#include <linux/ip.h> SEC("xdp_drop_malicious")
int xdp_drop_prog(struct xdp_md *ctx) { void *data_end = (void *)(long)ctx->data_end; void *data = (void *)(long)ctx->data; struct ethhdr *eth = data; if (data + sizeof(*eth) > data_end) return XDP_PASS; if (eth->h_proto != htons(ETH_P_IP)) return XDP_PASS; struct iphdr *iph = data + sizeof(*eth); if (data + sizeof(*eth) + sizeof(*iph) > data_end) return XDP_PASS; // Example: Drop traffic from a specific subnet identified by NAPSE as malicious if (iph->saddr == htonl(0x0A000001)) { // 10.0.0.1 return XDP_DROP; } return XDP_PASS;
} - Initial Access (T1190): Exploitation of edge-facing vulnerabilities or RDP misconfigurations.
- Lateral Movement (T1021): Monitoring for unusual RPC or SMB calls that indicate an attacker moving from a guest Wi-Fi to the accounting server.
- Data Exfiltration (T1041): Detecting unusual outbound traffic volumes to unknown IP addresses, a precursor to the "double extortion" tactic used by modern ransomware gangs.
- Impact (T1486): Identifying the actual encryption process through high-entropy file transfers across the network. - Micro-Segmentation via AI Policy: Use NAPSE to automatically identify device types (IoT cameras, VoIP phones, workstations) and dynamically apply firewall rules via AEGIS. If a camera starts talking to a database server, the Neural-Kernel cuts the connection instantly.
- Honey-Tokens and Decoy Traffic: Deploy virtual "canaries" within the edge network. An AI-native IDS can monitor access to these decoys with zero false positives, as no legitimate user should ever interact with them.
- Encrypted Traffic Analysis (ETA): Since most ransomware uses HTTPS for Command and Control (C2), HookProbe uses behavioral modeling to detect malicious patterns in encrypted streams without needing to decrypt the traffic, preserving privacy while maintaining security.
- Community-Driven Threat Intelligence: SMBs can benefit from the open-source on GitHub community, where shared detection patterns are validated by AI before being deployed to the edge.
